Presentation
Tensile behavior of nanocrystalline copper
USDOE
(1995)
Abstract
High density nanocrystalline copper produced by inert gas condensation was tested in tension. Displacements were measured using foil strain gauges, which greatly improved the accuracy of the strain data. The Young`s modulus of nanocrystalline copper was found to be consistent with that of coarse-grained copper. Total elongations of {approx} 1% were observed in samples with grain sizes less than 50 nm, while a sample with a grain size of 110 nm exhibited more than 10% elongation, perhaps signifying a change to a dislocation-based deformation mechanism in the larger-grained material. In addition, tensile tests were performed as a function of strain rate, with a possible trend of decreased strength and increased elongation as the strain rate was decreased.
Disciplines
Publication Date
November 1, 1995
Location
Washington, DC (United States)
DOI
10.2172/201763
Comments
Publisher's version of record: https://dx.doi.org/10.2172/201763
Citation Information
Paul G. Sanders, J. R. Weertman and J. A. Eastman. "Tensile behavior of nanocrystalline copper" USDOE (1995) Available at: http://works.bepress.com/paul-sanders/52/